Can.



E. BERTELS.

CAN.

Patented June 2.9, 1999.

APPLICATION FILED JUNE 20, 190B.

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(In-0m l T c all whom "it may concern:

, UNITED STATES PATENT @Flfifilfl.

CHARLES E. BERTELS, OF WILKES-HARRIS, PENNSYLVANIA.

CAIN.

Specification of Letters Patent.

Patented June 29, 1909.

Application filed June 20, 1908. Serial no. 439,621.

. .Be it known that I, CnAnLEs E. BERTELS, a citizen of the UnitedStates, residing at fillies-Barre, in thecounty of Luzerne and State of Pennsylvania, have invented a new and useful Can, of which the following is a specification.

This invention relates to sheet metal cans or receptacles, and more particularly to that class employing a closure that is held as sembled with the receptacle or body by frictional contact with the rim or mouth portion thereof.

The object of the present invention is to improve the manner of assembling the closure or cap with the rim or mouth of the receptacle, whereby to secure an absolutely air tight joint, and at the same time not to increase the resistance to removal of the closure.

It may be stated at this point that it is recognized to be old to provide the mouth of a can or receptacle with a jointless rim with which a cupped portion of the closure interlocks to hold the latter in position. Rims of this character generally employed have that face which contacts with the cupped portion of the closure flat, so that unlessthere be an absolute contact between all portions of the rim and of the cupped closure an air tight joint cannot be secured.

That which differentiates the present invention from the rim above defined is that the seal of the rim, or that part with which the cupped portion of the closure contacts is approximately circular in cross section,.so that only a minute portion of the exterior of the seal will contact with the closure, whereby a tighter fitting union can be secured with less resistance to assemblage and dis connection of the parts. A- further feature of difference is that the seal portion of the rim has itsupper edge disposed fiushor substantially so with'the like portion of the rim proper, thus to facilitate the removal of all of the contents of the can or receptacle.

WVith the above and other objects in view, as will appear as the nature of the invention is better understoodthe same consists in the various novel details of construction of a can closure, as will be hereinafter fully described and claimed.

In the accompanying drawings forming a part of this specification, and in which like characters of reference indicate corres 0nding parts; Figure 1 is a view in vertica longitudinal section through one form of rcccp- I tacle provided with the novel. form of rim constituting the subject matter of the present invention. Fig. 2 is a top plan view of the receptacle with the closure removed. Fig. 3 is an enlarged detail sectional view through the rim of the receptacle and that of the closure.

The receptacle 1, which is made of sheet vided with a bottom 2 that is held assembled with the walls of the receptacle by being beaded thereto at 3, in the usual IllfillIIOll This mode of securing the bottom to the receptacle will render the enn'doymeut of solder unnecessary, but it may be used.

sides in the peculiar rim that is assembled with the mouth portion of the receptacle, and is designed by coaction with the closure to secure an absolutely air tight joint between the parts. As shown more clearly in Fig. 3, the mouth portion of the reccptruxle is outturncd toform a head at, which is approximately U-shaped in cross section although arranged on the exterior of the body.

Disposed upon the upper edge of the re ceptaclc is the rim referred to, which provided with a double reheat head 5 that inclosesthe bead sand the inner edge 6 of which lies contiguous to or impinges against the bend of the bead 4. That portion of the from the bead 4 downward some distance bears closely against the inner wall of the former and .is then formed into a curled seal or closure engaging member 7, which, under pressure, will yield sufficiently to permit the positioning of the closure, and upon the removal of the latter will expand to its original proportions. 'lhe'yiclding of the inner curl a of the seal 7 is effected by disposing the side of the curl against the adjacent wall of the outer curl b of the seal, instead of its edge e, as has heretofore been the practice, so that under pressure from the closure, the curl a will slide against the wall of the curl 7; and thus permit proper seating of the closure. This compression of the seal is still further assisted by projecting the edge 0 inward beyond the horizontal axis of the seal, as clearly shown in Fig. 3. The cupped portion 8 ofthe closure 9 bears against the inner wall or periphery of the seal 7, and as will be obvious only a very small part of the soul metal may be circular as shown. and is pro-- it may be of other contours, and which is.

'rim that is disposed within the receptacle The novelty of the present invention recontacts with the closure, so that a perfectly air and liquid tight seal or joint may be secured.

The seal is assembled with the receptacle by the employment of suitable beading rolls, and the union between the arts of the seal and of the receptacle is such intimate character that the employment of solder is rendered unnecessary, although as an additional precaution solder may be em )loyed between the lower edge of the rebent bead and the body of the receptacle.

As will be obvious, and understood by reference to Fig. 2, the seal or rim is seamless, and this will insure the proper coaction, Without danger of breakage or splitting be tween the cupped portion of the closure and the seal.

An important feature of the invention resides in the disposition of the seal relative to the upper edge of the rim, it being seen by reference to Fig. 3 that the upper edge of the former occupies a plane coincident with that of the rim, or in other words is flush there- With.' The seal is relatively small in diame ter, and therefore constitutes a pouring edge that will facilitate the discharge of the contents of the can, and prevent the retention of any measurable quantity thereof.

The walls of the cupped portion of the closule 9 are disposed approximately at right angles to the plane of the bottom thereof, and this will insure the most stable union between the closure and the seal. I As usual, the closure is provided with an outstanding eaeeei.

flange 10 formed at its periphery with a head 11 to bear upon the crest of therebent bead 5. I

The improvements herein defined are simple in character, but will be found thoroughly efficient for the purpose designed and will coact in the production of a durable,

practical and thoroughly reliable form of sheet metal receptacle for containing paints, oils, food roducts or 1n fact any substance that it is esired to shield against the dcteri-' orating elle'clSQQf theetmosphere.

What is claimed is;

1. A receptacle having a seamless n'm formed into a curled seal, the inner; 53321 of which is arranged to slide against the sd'acent wall of the outer curl when the seal is subjected to pressure.

A receptacle having a seamless rim formed into a curled soal, the edge. of the inner curl of which projects bcyonrL the horizontal axis of the seal.

3. A receptacle having an innard projecting seamless rim l'ormcd'into a curled seal, the opposed portions of which are arranged for sliding movement relatively to each other under pressure.

In testimony that 1 claim the foregoing as my own, l have hereto affixed my signature in the presence of two witnesses.

CHARLES E. BER'IELS.

Witnesses:

l0. K. STEWART, ll- M. lCLLio'nr. 

